Block for sewer construction.



Patented Feb. 16, 1909.

' 0. H. SLOOOMB.

BLOCK FOR SEWER CONSTRUCTION.

- APPLICATION FILED FEB.27, 1906 I {CHARLES H. SLOQOMB, OF HARTFORD, CONNECTICUT.

BLOCK FOR SEWER CONSTRUCTION.

- Specification of Letters Patent.

latented Feb. 16, 1909.

Application filed. February 27, 1906. Serial No. 303,260.

Tocllwiwm it may concer'ni Be it known that I, CHAnLnsH. Snoconn, a citizen ofthe United States, and a resident of Hartford, in the county of Hartford and State of Connecticut, have invented a new and Improved Block for Sewer Construction, of which the following is a specification.

My invention relates to blocks usually constructed of concrete and employed in the construction of sewers, and the object of m invention-is to provide an improved bloc that shall enable the construction work to be rapidly done; and a further object of the "invention is to provide a block for use in sewer construction that shall prevent leakage of fluid through the sewer walls; and a further object of the invention is to'provide a block in the use of which a sewer of extreme strength and stability shall be roduced. A form of block in the use of w ich. these objects may be attained is. illustrated in the accompanying drawings, in which- Figure 1 is a perspective view of a block embodying my invention. Fig. 2 is a view in cross-section through the-block. Fi 3 is a view in longitudinal section through the block. v l

Prior to my invention it has-been a common practice, in the construction of sewers of considerable size, to form the walls of several layers of brick of common size, the joints, of course, bein broken in' a manner common to mason wor employing bricks in the construction.

The time consumed in constructing a certain length of sewer is limited owing to the amount of work in handling the many pieces of brick, and also the care that must be exercised in properly laying the bricks. I

In carrying out my invention I provide a block of a thickness equal to the thlckness of the wall of the sewer to be constructed therefronL- It will be obvious that if such a block is constructed with straight sides and ends that liquid would be liableto leak through the joints. In order to obviate this difficulty I provide the ends of the block a with a top rejection 6 and a bottom rejection 0. his prouides three mortar $111 1, 2 and opposite 3 each located at an angle to another and thus eiiectually preventing'the leakage of liquid at-these points. The upper surface of the block is of convex form, as shown at d, and the under surface is of concave form,

as shown at e.

The sides of the block are tapered as at f to enable the block to be adapted to the circularform of the sewer. For purposes of facility in construction the sides of the block are made straight as shown, but in order to prevent leakage between! the blocks at this point a rib or projection g is provided on one side of the block and a recess h correspondingthereto on the opposite side of the block.

It is obvious that the joint between the straight sides of the block may be interrupted in various ways, and I therefore do not limit myself to the rib and groove herein shown.

What I claim as my invention and. desire to secure by Letters .Patent is 1. A block=forsewer construction having sloping side walls andtop and bottom faces curved laterally of the-block and with a projecting' top at one end and a projecting bottom at the opposite end, each of'said projecti ns-extending the full width of the block and with interlocking means on the sides.

2'. A block for sewer construction having sloping side walls and with-a projecting top at one end and a projecting bottom at the end, each of said. projections extending the full width of the block and interengaging means located onthe sides extending the full length of the block 3. A block for sewer constructionhaving sloping side walls and top and bottom faces and with a projecting top at one end and a projecting bottom at the opposite .end the ledges of which are located practically in the same plane, and a groove and rib oppositely arranged extending along the sides of the block centrall of said ledges.

; HARLF-S H. SLOCOMB.

Witnesses: t v

MABELL. HAWKINS, :ARTHUR B. JENKINS. 

